Lighting device



FIG. 1 is a top perspective view of a lighting device showing my design;

FIG. 2 is a bottom perspective view of the design.

FIG. 3 is a top view of the design.

FIG. 4 is a bottom view of the design.

FIG. 5 is a left side view of the design.

FIG. 6 is a right side view of the design.

FIG. 7 is a front view of the design; and,

FIG. 8 is a rear view of the design.

The portions of the lighting device shown in broken lines form no part of the claimed design. 

CLAIM The ornamental design for a lighting device, as shown and described. 